package com.aacar.utils;


import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.URL;
import java.net.URLConnection;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.List;
import java.util.Map;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

public class HttpUtil {
	private static Log logger = LogFactory.getLog(HttpUtil.class);
	
	public static String getWealthjson(String wUrl,String cityName) throws Exception{
		//参数url化
		String city = java.net.URLEncoder.encode("北京", "utf-8");
		
		//拼地址
		String apiUrl = String.format(wUrl,cityName);
		//开始请求
		URL url= new URL(apiUrl);
		URLConnection open = url.openConnection();
		InputStream input = open.getInputStream();
		//这里转换为String，带上包名，怕你们引错包
		String result = org.apache.commons.io.IOUtils.toString(input,"utf-8");
		//输出
		return result;
	}
	
    /**
     * 向指定URL发送GET方法的请求
     * 
     * @param url
     *            发送请求的URL
     * @param param
     *            请求参数，请求参数应该是 name1=value1&name2=value2 的形式。
     * @return URL 所代表远程资源的响应结果
     */
    public static String sendGet(String url, String param) {
        String result = "";
        BufferedReader in = null;
        try {
        	long startTime = System.currentTimeMillis();
        	logger.info("@@ startTime is " + new SimpleDateFormat("yyyy-MM-dd hh:mm:ss").format(new Date(startTime)));
            String urlNameString = url + "?" + param;
            logger.info("## url is "+urlNameString);
            URL realUrl = new URL(urlNameString);
            // 打开和URL之间的连接
            URLConnection connection = realUrl.openConnection();
            // 设置通用的请求属性
            connection.setRequestProperty("accept", "*/*");
            connection.setRequestProperty("connection", "Keep-Alive");
            connection.setRequestProperty("Content-Type", "application/json");
            connection.setRequestProperty("user-agent",
                    "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)");
            // 建立实际的连接
            connection.connect();
            // 获取所有响应头字段
            Map<String, List<String>> map = connection.getHeaderFields();
            // 遍历所有的响应头字段
            for (String key : map.keySet()) {
            	logger.info(key + "--->" + map.get(key));
            }
            // 定义 BufferedReader输入流来读取URL的响应
            in = new BufferedReader(new InputStreamReader(
                    connection.getInputStream()));
            String line;
            while ((line = in.readLine()) != null) {
                result += line;
            }
            long endTime = System.currentTimeMillis();
            logger.info("## response is " + result);
            logger.info("@@ endTime is " + new SimpleDateFormat("yyyy-MM-dd hh:mm:ss").format(new Date(endTime)));
            logger.info("@@ total-time:" + (endTime - startTime));
        } catch (Exception e) {
        	logger.error("发送GET请求出现异常！" + e);
            e.printStackTrace();
        }
        // 使用finally块来关闭输入流
        finally {
            try {
                if (in != null) {
                    in.close();
                }
            } catch (Exception e2) {
                e2.printStackTrace();
            }
        }
        return result;
    }

    /**
     * 向指定 URL 发送POST方法的请求
     * 
     * @param url
     *            发送请求的 URL
     * @param param
     *            请求参数，请求参数应该是 name1=value1&name2=value2 的形式。
     * @param param
     *            请求头信息
     * @return 所代表远程资源的响应结果
     */
    public static String sendPost(String url, String param,String mobilehead) {
        PrintWriter out = null;
        BufferedReader in = null;
        String result = "";
        try {
        	long startTime = System.currentTimeMillis();
        	logger.info("@@ startTime is " + new SimpleDateFormat("yyyy-MM-dd hh:mm:ss").format(new Date(startTime)));
        	logger.info("## url is "+url +param);
            URL realUrl = new URL(url);
            // 打开和URL之间的连接
            URLConnection conn = realUrl.openConnection();
            // 设置通用的请求属性
            conn.setRequestProperty("accept", "*/*");
            conn.setRequestProperty("connection", "Keep-Alive");
            conn.setRequestProperty("Content-Type", "application/json");
            conn.setRequestProperty("user-agent",
                    "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)");
            conn.setRequestProperty("mobilehead", mobilehead);
            // 发送POST请求必须设置如下两行
            conn.setDoOutput(true);
            conn.setDoInput(true);
            // 获取URLConnection对象对应的输出流
            out = new PrintWriter(conn.getOutputStream());
            // 发送请求参数
            out.print(param);
            // flush输出流的缓冲
            out.flush();
            // 定义BufferedReader输入流来读取URL的响应
            in = new BufferedReader(
                    new InputStreamReader(conn.getInputStream(),"utf-8"));
            String line;
            while ((line = in.readLine()) != null) {
                result += line;
            }
            long endTime = System.currentTimeMillis();
            logger.info("## response is  " + result);
            logger.info("@@ endTime is " + new SimpleDateFormat("yyyy-MM-dd hh:mm:ss").format(new Date(endTime)));
            logger.info("@@ total-time:" + (endTime - startTime));
        } catch (Exception e) {
        	logger.error("发送 POST 请求出现异常！"+e);
            e.printStackTrace();
        }
        //使用finally块来关闭输出流、输入流
        finally{
            try{
                if(out!=null){
                    out.close();
                }
                if(in!=null){
                    in.close();
                }
            }
            catch(IOException ex){
                ex.printStackTrace();
            }
        }
        return result;
    }    
}